Subtract 30/12 from 27/10
1st number: 2 7/10, 2nd number: 2 6/12
27/10 - 30/12 is 1/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 10 × 6 = 60,
27/10 = 27 × 6/10 × 6 = 162/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
30/12 = 30 × 5/12 × 5 = 150/60 - Subtract the two like fractions:
162/60 - 150/60 = 162 - 150/60 = 12/60 - After reducing the fraction, the answer is 1/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/10-30/12 27/10-60/12 27/20-30/12 27/10-30/24 81/10-30/12 27/10-90/12 27/30-30/12 27/10-30/36 27/50-30/12 27/10-30/60 27/70-30/12 27/10-30/84